30500557061 has 12 divisors (see below), whose sum is σ = 33058847520. Its totient is φ = 28127408400.

The previous prime is 30500557057. The next prime is 30500557067. The reversal of 30500557061 is 16075500503.

It is not a de Polignac number, because 30500557061 - 2² = 30500557057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30500557067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91760 + ... + 263478.

It is an arithmetic number, because the mean of its divisors is an integer number (2754903960).

Almost surely, 2^30500557061 is an apocalyptic number.

It is an amenable number.

30500557061 is a deficient number, since it is larger than the sum of its proper divisors (2558290459).

30500557061 is a wasteful number, since it uses less digits than its factorization.

30500557061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172796 (or 172783 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 32.

The spelling of 30500557061 in words is "thirty billion, five hundred million, five hundred fifty-seven thousand, sixty-one".